I do not know what other people do, but since I only collect certain drivers, if the card is part of a set I just keep who I collect and put the others up FT. Other people do not break up the sets and will only trade it as a set and not individually, which I think is a lot harder to trade. This probably wasn't too helpful . I saw that you have Mark Martin cards that I would be interested in. I have a few Sterling Marlin cards FT. I will send you a TO shortly. Thank you.